baber/WOPTO huggingface dataset:
Patent GB-674898-A (GB)
Title: Improvements in and relating to moulding press
IPC: B30B7/02
Filed: 1949-05-26
Abstract: 674,898. Presses. BRIGGS MANUFACTURING CO. May 26, 1949 [June 25, 1948] No. 14176/49. Class 140. A press for forming compound sheet materials comprises a fixed platen 22 and movable platens 17-21, upward movement of the lower of which causes vertical movement of the others through the medium of a series of pairs of crossed links 25, 26; 32, 33; 37, 38; 42, 43; 47, 48, each pair being pivotally connected as at 27, and the links of adjacent pairs being pivotally connected together at the ends of the links as at 30, 31 ; 35, 36, and the ends of the links being pivotally connected to the platens as at 28, 29, 30, 31, 50, 51. In the apparatus described, the pivots, other than such as 27, in the form of pins or studs secured to the links extend into elongated slots in brackets 23, 24 and/or the platens to allow a measure of lostmotion.
Patent GB-545994-A (GB)
Title: Improvements in non-skid soles for shoes
IPC: A43B13/22
Filed: 1940-09-16
Abstract: 545,994. Boot &c., soles. AUSTIN, N. A. Sept. 16, 1940. No. 14257. [Class 17 (ii)]' A rubber shoe sole 5 is formed with a series of flat parallel-sided zig-zag ribs 6 spaced apart by intervening zig-zag grooves 7 of a width substantially less than the width of the ribs but of a depth substantially the same as the width of the ribs, each of which for its full length is formed with a concavely curved ground-engaging portion 5b. The thickness of the portions 8 of the sole which lie between the ribs is less than the width of the ribs. The ribs may extend longitudinally or otherwise of the sole.
Patent GB-529061-A (GB)
Title: Improvements in valve mechanisms
IPC: A01J5/12
Filed: 1939-05-12
Abstract: 529,061. Fluid-actuated valves. SVENSKA AKTIEBOLAGET GASACCUMULATOR. May 12, 1939, No. 14268. Convention date, May 12,1938. [Class 135] [Also in Group XXVI] A valve mechansim for reversing the flow of fluid comprises at least two connected disc valves and is prevented from remaining midway between its seats when fluid flow is first established by making the cross sectional area of the space surrounding the disc greater than that surrounding the other. The Figure shows a pulsator for a milking machine which places two conduits 15<SP>1</SP>, 15<SP>11</SP>, leading to teat-cups, alternately into connection with a source of vacuum through a conduit 16 or with the atmosphere through apertures 13, 14 and 9 by means of the rigidly connected valves 2<SP>1</SP>, 2<SP>11</SP>. The valve seats 11<SP>1</SP>, 11<SP>11</SP> are smaller than the seats 12<SP>1</SP>, 12", so that, once seated, the valves are held seated by the resultant force of atmospheric pressure acting on a greater area of one than the other. To avoid a pressure difference at the valve 2<SP>1</SP> from counteracting that at the valve 2<SP>11</SP> when starting, the space D is made larger than the space d, and the pulsations are produced by applying the pressures in the valve chambers 7<SP>1</SP>, 7<SP>11</SP> to either side of a diaphragm 5 connected to the valves by a spindle 3 carried in a fluid-tight bearing 4, a throttle valve 19 serving to determine the pulsation rate by regulating the rapidity with which the pressure difference across the diaphragm overcomes the resultant force of atmospheric pressure acting on the valves. The spaces d D preferably have a smaller cross-sectional area than that of other channels, conduits or openings through which the fluid passes.
Patent GB-968471-A (GB)
Title: Polymers and articles
Inventor: CLARK KEITH JASPER
IPC: C08F10/14
Filed: 1962-04-13
Abstract: A transparent (defined) polymer of 4-methyl hexene-1 is prepared using the method of polymerization and purification described in Specification 942,297 including the optional use of hydrogen. In the example the catalyst comprises titanium trichloride and aluminium diethyl chloride and the polymer is purified with acetyl acetone and isopropanol followed by washing first with a mixture of petroleum ether and isopropanol and finally with acetone.
Patent GB-1501240-A (GB)
Title: X-ray apparatus
IPC: H05G1/58
Filed: 1975-04-08
Abstract: 1501240 Control systems for X-ray apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 April 1975 [11 April 1974] 14353/75 Heading H2H An X-ray apparatus comprises a rotary anode X-ray tube 5 supplied from a high voltage generator 4 by way of a control triode tube 6, the anode of the X-ray tube 5 and the cathode of the tube 6 being connected together and to earth. Thus the air gap between the rotor and stator of the rotary anode may be made considerably smaller than is normal in conventional X-ray tubes. The high voltage applied to the X-ray tube 5 is controllable by a signal from a controller 7 to the grid of the tube 6. If desired, a second high voltage generator 9 may be provided, the X-ray tube 10 then being connected intermediate the two sources 4, 9.
Patent GB-1147084-A (GB)
Title: High frequency signal sampling apparatus
IPC: G01R19/00
Filed: 1966-03-31
Abstract: 1,147,084. Voltage measuring. HEWLETT-PACKARD CO. March 31, 1966 [April 29, 1965], No.14407/66. Heading G1U. [Also in Division G4] In a circuit for producing high frequency pulses derived from an applied signal, the input is fed to a sampling circuit 9 to which control pulses are fed at a repetition rate which is varied cyclically. The output pulses are fed through amplifier 23, pulse stretcher 25 detector 27 and smoothing circuit 55, 57 to produce a steady output which is fed to meter 31. The range is altered by varying the gain of amplifier 23 in steps and a supply 37 is adjusted to off-set the noise component. Unbalance in the sampler is reduced by D. C. feedback over amplifier 35, and a network 41, connected in a negative feedback loop around differential amplifier 29, compensates for the non- linearity of the detector 27. Equal resistors 61, 63 connected to amplifier 59 cause it to have unity gain normally, and feedback capacitor 53 produces integration to ensure a steady indication of the meter 31. Large signal excursions cause diode 49 or 51 to conduct so that capacitor 45 becomes effective to overcome the damping effect due to capacitor 53. A switch on a sensing probe causes a relay to operate and open contacts 60 so that the meter indication is held. If, during this period, there is a sufficient change in the output from amplifier 29 for either diode 73 or 71 to conduct, a correction signal is fed back to the amplifier 29 to ensure that its output does not change further.
Patent GB-572608-A (GB)
Title: Improvements in and relating to butter conditioners or receptacles in refrigerators
IPC: F25D23/12
Filed: 1943-09-03
Abstract: 572,608. Refrigerators. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 3, 1943, No. 14424. Convention date, Sept. 3, 1942. [Class 29] A receptacle 18 for storing butter in relatively warm condition has an inner wall 24 of ceramic material, glass or other non-conductor, and an outer wall 25 spaced therefrom to provide dead air insulation. The inner receptacle is warmed by transfer of heat through reduced cabinet wall insulation and by an electric heater. A recess 19 is formed in the cabinet insulation and the receptacle walls are secured by screws 27 to the inner liner 13 of the cabinet wall. A spacing flange 26 may be formed integrally with the inner ceramic &c. wall 24. An electric heating coil 33 may be wound around grooves 34 in the outer surface of the wall 24, the circuit being controlled by a thermostat 35 having an adjustment 36. The inner wall 24 may be moulded integrally with four sides of the outer wall, a separate back being secured to the outer wall, &c. of a phenolaldehyde resin. A heating resistance may be located in the space between the walls, the outer surface of the inner wall being covered with copper, aluminium or other heat conductor.
Patent GB-239915-A (GB)
Title: Improvements in, and connected with, air-heating stoves
IPC: F24H3/06
Filed: 1924-06-14
Abstract: 239,915. Craig, F. B. June 14, 1924. Air, treating; forced draught apparatus; pipes, arrangement of. -Apparatus for supplying heated and moistened air comprises a stove of the kind having an outer casing 8 forming an air-heating space 9 through which air is forced by a fan mounted in an extension 11 of the outer casing, together with a humidifying chamber 15 containing plates, screens, or baffles 18 with means, such as the jets 19, for spraying water or other liquid in proximity to them. The chamber 15 is connected to the atmosphere by a pipe 16 and is provided with an auxiliary inlet 25 by which part of the heated air may be recirculated through the apparatus.
Patent GB-218636-A (GB)
Title: Improvements in machines for making paper bags
IPC: B31B50/32
Filed: 1924-06-16
Abstract: 218,636. Hesser Maschinenfabrik Akt.-Ges., F. July 3, 1923, [Convention date]. Paper bags, making.-In a machine in which paper bags are made on shaped mandrels, creases are formed in the sides of the bags to assist in the subsequent flattening of the bag. which may be done by apparatus of the type described in Specification 190,958. Creasing members 7, 8, which are secured to the side folders 5, 6, co-operate with grooves 9 in the sides of the mandrel 1 and produce the creases at the station where the end of the bag is folded.
Patent GB-1412523-A (GB)
Title: Handling apparatus for sheetforming articles
IPC: B65H31/36
Filed: 1973-03-27
Abstract: 1412523 Sheet ordering apparatus HARRISINTERTYPE CORP 27 March 1973 [10 April 1972] 14559/73 Heading B8R In a device for forming counted batches of sheets wherein the sheets 98 are delivered by conveyer means 16, 18 on to an elevator 38, completed batches of sheets are removed from the elevator by pusher fingers 50, 50<SP>1</SP>, Fig. 5, the fingers 50 having angled upper portions 56. During removal of a completed batch subsequent sheets are intercepted by fingers 78 and 94, Fig. 3. The completed batches are removed on a roller conveyer 46. The sheets are deflected on to the stack by travelling under a roller 26 and guide bar 28. A back stop 34 intercepts the delivered sheets. The back stop and the carriages 74 carrying the auxiliary support fingers 78 are adjustable to accommodate different sheet sizes. The camming surfaces 56 of the fingers 50 serve to lift any sagging portions of the pile supported on auxiliary fingers 94 as the pusher fingers advance, thereby avoiding crushing of the lowermost sheets of the auxiliary stock against the back stop.
Patent GB-1464980-A (GB)
Title: Deodorising waste gases
IPC: B01D53/38
Filed: 1974-04-02
Abstract: 1464980 Deodorising gases STERLING DRUG INC 2 April 1974 [16 April 1973] 14645/74 Heading A5G Contaminants and objectionable odours are removed from gases exiting from sewage sludge wet air oxidation reactors by passing the gases through a scrubber containing activated sewage sludge or the mixed liquor resulting from mixing activated sewage sludge with fresh sewage, the activated sewage sludge having a total solids content of between 5,000 and 10,000 mg/l. and the mixed liquor having a suspended solids concentration between 2,000 and 4,000 mg/l.
Patent GB-1179453-A (GB)
Title: D.C. Electric Motor Control System
Inventor: CROCOMBE JAMES
IPC: H02P1/18
Filed: 1967-03-30
Abstract: 1,179,453. Control of D.C. motors. BRECKWELL, WILLIS & CO. Ltd. 23 Jan., 1968 [30 March, 1967], No. 14650/67. Heading H2J. A motor M is started when a switch is actuated to energize contactor MC1-MC3 to apply lineto-line voltage to rectifier bridge BR1 and line-to-neutral reduced voltage to rectifier bridge BR2. The motor thus operates at low speed determined by full excitation of field winding F and low voltage supplied to armature A. A timer switch operates relay REL after a delay period to open contacts REL1, REL2, and to close contacts REL3, REL4, whereby a part of resistor RA is short-circuited to increase the armature current. The running speed of the motor may be selected by means of ganged switches SW1A, SW1B, which have contacts for tapping resistor RF to reduce the field current, and for connecting the rectifier bridge BR2 across lines L1, L3, to increase the armature current.
Patent GB-183648-A (GB)
Title: A machine or mould for the purpose of moulding concrete blocks
IPC: B28B7/00
Filed: 1921-05-27
Abstract: 183,648. Paton, J. K. May 27, 1921. Moulds. - In a block-making mould in which the four sides are hinged to a base, locking-levers 19 are pivoted to opposed sides 13 and adapted to engage projections 22 carried by the adjacent sides 9, 10. A pallet 15 rests on blocks 16 the position of which may be adjusted by screws 17.
Patent GB-612043-A (GB)
Title: Improvements in or relating to the manufacture of primer caps having a domed base
IPC: F42B33/02
Filed: 1946-05-16
Abstract: 612,043. Primer caps. COLLETT, F. H. May 16, 1946, No. 14806. [Class 9 (i)] Apparatus for filling caps with fulminate or the like having a plate with regularly spaced holes to receive the caps to be charged, the said holes being spaced for co-operation with an assemblage of punches, is provided with a bedplate 6 having an unbroken plane surface, a sheet of strawboard 4 or the like, being interposed between the bed-plate 6 and the capcarrying plate so that, when the punches descend to compress the fulminate, the bases of the caps become embedded in the strawboard without being distorted. -
Patent GB-1220039-A (GB)
Title: Trialkyl plumbides and unsymmetrical tetraalkyl leads
IPC: H01M10/24
Filed: 1969-03-20
Abstract: 1,220,039. Alkali metal trialkyl plumbides; tetra-alkyl lead. E. I. DU PONT DE NEMOURS & CO. 20 March, 1969 [22 March, 1968], No. 14820/69. Heading C2J. Alkali metal trialkyl plumbides are prepared by contacting a tetra-alkyl lead in which each alkyl group contains 1-6 carbon atoms and an alkali metal in a normally liquid, polar aprotic medium at a temperature between the freezing point and boiling point of the medium, or the decomposition temperature of the medium or of the tetraalkyl lead, whichever is lower. Each alkyl group has preferably 1-4 carbon atoms and at least one mole of the alkali metal per mole of the tetraalkyl lead is used, the reaction temperature being from 15‹ C. to 60‹ C. The aprotic medium may be hexamethylphosphoramide, hexamethylphosphoramide dissolved in an aromatic hydrocarbon solvent, an ether which forms a blue solution when contacted with the alkali metal or an ether having a hydrocarbon dissolved therein which forms a charge transfer complex with the alkali metal. The alkali metal trialkyl plumbides may be used for preparing unsymmetrical tetraalkyl lead compounds by contacting the plumbide in an aprotic medium with at least 1 mole per mole of plumbide of an alkylating agent of the formula R<SP>1</SP>X wherein X is a displaceable anion and R<SP>1</SP> is an alkyl group of 1-14 carbon atoms and being different from at least one alkyl group of the plumbide and recovering the unsymmetrical tetraalkyl lead from the reaction mass.
Patent GB-743353-A (GB)
Title: Polystyrene rubber compositions
Inventor: ARDLEY STANLEY MAURICE
IPC: C08L21/00
Filed: 1953-05-28
Abstract: A vulcanized composition of polystyrene or copolymers thereof, with a major proportion of rubber and 5 to 25 parts per 100 parts of styrene of an ester plasticizer such as dibutyl and dioctyl phthalates and tricresyl phosphate is prepared by mixing part of the rubber with the other ingredients at an elevated temperature and compounding the product with more rubber and vulcanizing agents, and finally vulcanizing.  The products, of increased hardness and elasticity, may be used for shoe soleing, flooring, extrusion, insulating and translucent materials.ALSO:An ester plasticizer such as dibutyl phthalate, dioctyl phthalate or tricresyl phosphate is incorporated in a mix of polystyrene and rubber to make them compatible, the mix containing a major proportion of rubber to allow of its being vulcanized and containing 5 to 25 parts by weight of ester to 100 parts of polystrene.  The mix is preferably made by mixing polystyrene with the plasticizer and some of the rubber to give a homogeneous intermediate product containing 1 to 3 parts of polystyrene to 1 part of rubber, which is then mixed with the remainder of the rubber and the vulcanizing and compounding agents. The polystyrene may be wholly or in part replaced by a copolymer of styrene containing a major proportion of styrene units in its molecular structure.  In an example the initial composition was, in parts by weight, pale crepe rubber 100, polystyrene 200, dibutyl phthalate 10. The rubber was masticated for 3 minutes at a temperature of 35-40 DEG  C. and mixed with powdered polystyrene and plasticizer. The mixture was then heated to 150 DEG  C. to gell the polystyrene and was further milled for 5 minutes.  The resulting composition was then mixed with rubber and vulcanizing ingredients to give a final composition, in parts by weight, pale crepe rubber 90 or 80, polystyrene/rubber/composition 30 or 60, zinc oxides 5, sulphur 3, stearic acid 2, cyclohexyl benzthiazyl sulphonamide 1.  An alternative method of preparing the intermediate composition and a further example using an initial composition of 100 parts crepe rubber, 100 parts polystyrene and 10 parts dibutyl phthalate, are given.
Patent GB-151072-A (GB)
Title: Improvements in or relating to pulverising apparatus
IPC: B02C15/02
Filed: 1919-06-12
Abstract: 151,072. Aube, J. June 12, 1919. Roller-and-ring mills and apparatus.-Pulverizing-apparatus of the type having a gaseous current flowing in a closed circuit from a central conduit to the periphery of the apparatus and in which the dust is separated so that the same air may be utilized again, is provided with an independent rotating gas distributor 2 keyed to the driving-shaft 1, the arrangement being such that the gaseous current entering the mill is directed from the centre to the periphery of the grinding- chamber. The suction and intensity of the gaseous current is varied by adjustable dampers 9 at the top of the mill. It is stated that economy of motive power is effected.
Patent GB-1144467-A (GB)
Title: Process for producing sintered metal laminates
Inventor: JOHNSON JAMES ROBERT
IPC: B22F7/02
Filed: 1966-04-04
Abstract: 1,144,467. Metal powder laminates. MINNESOTA MINING & MFG. CO. 4 April, 1966, No. 14899/66. Heading B5N. [Also in Division C7] Green laminates which are sintered to form flans and planchets are produced from separate sheets of metal powder, or compounds convertible to metal during sintering, dispersed in a plasticized organic polymeric binder by superimposing at least a pair of said sheets in surfaceto-surface contact and adhering them together, the composition of adjacent sheets being different. The metal powders may be Au, Ag, Cu, Ni, stainless steel and their alloys and the powder size is 30 to 400 U.S. mesh. The binders used are methyl methacrylate polymer and methyl cellulose used in a proportion of 3-7% by weight. The mixture of powder and binder of a suitable consistency is formed into sheets or strip by calendering with a heated roll. The self-supporting strip may be supported on polyethylene terephthalate, silicone wax or polyethylene coated paper. Discs or various shaped flans are punched from the sheets and superimposed on each other, adhesion of the superimposed discs or flans is achieved by moistening the surfaces with water or in the case of thermoplastic binders heating under pressure. The remaining scrap green sheet or strip is recrushed and reused. Sintering is carried out at 60-97À50/ of the metal melting temperature in ‹K, e.g. 1000‹ C. In one example coins with a core of Cu and a surface laminate of 75% Cu/25% Ni are produced. In an alternative embodiment three green strips consisting of (1) an inner sheet of Cu/Ag in a ratio by weight of 4: 1 and (2) two outer sheets of Cu/Ag in a ratio of 1: 4 are superimposed and rolled together through a printing roller and adhered together with spots of water and the required flans are then stamped out and then sintered.
Patent GB-238042-A (GB)
Title: Improvements in and relating to the production and use of antiseptic and disinfectant compositions
IPC: C08L61/04
Filed: 1924-06-20
Abstract: An antiseptic, disinfectant or preservative composition is prepared by mixing thymol or other higher phenol with a derivative of furfurane, such as furfural, and subjecting the mixture to oxidation, air or other gas containing oxygen or ozone being employed.  Hydrogen peroxide and ozonic ether are mentioned as other suitable oxidizing agents.  Specification 172,993 is referred to.
Patent GB-1157170-A (GB)
Title: Hydraulic Circuit
IPC: F15B13/02
Filed: 1967-03-31
Abstract: 1,157,170. Hydraulic transmission of power. COMMERCIAL SHEARING & STAMPING CO. March 31, 1967 [Aug.10, 1966], No.14990/67. Heading F1P. [Also in Division E1] In a hydraulic system for an excavator or backhoe comprising a number of hydraulic motors 28 controlled by two banks of spool valves 17-19, 22-25, a pump 10 supplies hydraulic fluid to the valves by way of a flow divider (12, Fig. 2, not shown) in the form of two pairs of intermeshing gears 32, 33, at least one gear of each pair being intercoupled whereby with one flow being directed to exhaust by one bank, one pair of gears is driven by the flow and drives the other pair to thereby boost the pressure of the other-flow. A pressure relief valve 13 limits the output pressure of the pump 10. The bank of valves 17-19 has an inlet section 16 provided with a pressure limiting valve 36 and the bank of valves 22-25 has an inlet section 20 provided with a pressure limiting valve 37.
Patent GB-624067-A (GB)
Title: Improvements in or relating to air-pressure regulating apparatus for steam heating systems
IPC: F24D19/08
Filed: 1947-06-09
Abstract: 624,067. Air pressure regulating apparatus for steam heating systems. FULDA, M. E. June 9, 1947, No. 15102. [Class 64(ii)] Air pressure regulating apparatus for a steam heating system comprises a water seal adapted to allow air to be forced out of the system by the pressure of the steam, combined with a check valve arranged to check the influx of air through the water seal when the pressure in the heating system is suddenly reduced, the check valve being biased to open automatically when the vacuum tension falls below a preset level. In the form shown, the water seal comprises a container 1 divided by a partition 2 into upper and lower vessels 3 and 4 which intercommunicate through a tube 5. The check valve consists of a plate 9 adapted to close against the underside of a seat formed in the tube 5 above the normal water level. The pipe 6 is connected to the heating system at a convenient point for discharging air, and the pipe 7 is connected at its upper end to a pipe leading to the atmosphere and at its lower end to a pipe arranged to drain water of condensation to a sump or to the boiler. When the heating system is started up, air forced out of the system by steam pressure passes out through the pipe G to compartment 3 and through the tube 5, bubbling through the water in compartment 4 before escaping through the overflow opening 8. When condensation of steam develops in the system, the water in compartment 4 is sucked through the tube 5 into compartment 3 until the water level is below the lower end of tube 5 and any further reduction in pressure causes air to be sucked through the tube 5 and into the system. The vacuum tension in the system is thus limited to a certain value and the water sucked into compartment 3 prevents further air from entering the system when this value has been restored. On a sudden abnormal reduction of pressure in the system, air is drawn in sufficiently rapidly to close the valve 9 which opens automatically when the vacuum tension falls to a pre-set value.